# 导入所有 SQLAlchemy 模型，使 Alembic 能够检测它们
from app.db.base_class import Base  # noqa
from app.models.contacts import Contact  # noqa
from app.models.messages import Message  # noqa
from app.models.sessions import Session  # noqa
from app.models.pua import PUAPattern  # noqa